Wooster; Indiana to Delphos and west of Wooster to East Liverpool certified as U.S. Route 30; East Liverpool to Pennsylvania certified as State Route 39; Mansfield to Ashland dually certified as U.S. Route 42 and State Route 5; Ashland to west of Wooster dually certified as State Routes 5 and 6. 1929 – State Route 5 dual certification removed from U.S. Route 42 and State Route 6. 1932 – Delphos to Mansfield certified as U.S. Route 30N. Major intersections References External links State Route 5 Endpoint Photos 005 Ohio State Route 005 Ohio State Route 005